How to specify the path to a dependency located in my home directory in Cargo.toml?

Question

I want to use a local package which is located in my home directory. By default, Cargo searches for dependencies relative to Cargo.toml. If I know where my project is located relative to the home folder, I can do something like this:

[dependencies] tools = { path = "../../rust_libs/tools" }

I don't always know where my project is located and I would like to do something like this:

[dependencies] tools = { path = "${HOME}/rust_libs/tools" }

How can I get the home path inside of Cargo.toml? Maybe there are other ways to achieve this?

@Dmitry yes. It just appends this path to Cargo.toml path and shows error. "Unable to update /Users/vladas/dev/sand/rust_sand/~/rust_libs/tools" — VladasZs
– VladasZs, Commented Apr 5, 2021 at 14:16

Dmitry · Accepted Answer · 2021-04-06 12:03:51Z

You can try to workaround this issue with native linux soft links:

Create a soft link to ~/rust_libs/tools in your Cargo.toml's directory using commad:

ln -s ~/rust_libs/tools

In Cargo.toml just use relative path:

[dependencies] tools = { path = "tools" }

transistor · Accepted Answer · 2021-04-05 17:08:01Z

5

It should work if you use a path that starts with '/' which should be recognized as an absolute path. If the path starts with ~/ or $HOME/ and there is no env variable expansion, then those paths will look like a relative path, and cargo will prepend the current path. I don't think Cargo.toml supports substituting environment variables, so you will have to specify the whole path (ie. /Users/vladas/rust_libs/tools)

answered Apr 5, 2021 at 17:08

transistor

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4 Comments

VladasZs Over a year ago

It works for paths starting with '/'. Thank you. But with this approach i still need to know user name and also the path will be different on windows and linux. Is there a way to make it crossplatform?

0fnt Over a year ago

@VladasZs Sorry it's not clear what you did. How did you get it to work?

transistor Over a year ago

[dependencies] tools = { path = "/Users/vladas/rust_libs/tools" }

Miscreant Over a year ago

I can't get it to work on Windows. Complains about invalid path no matter what I try.

Felix F Xu · Accepted Answer · 2023-10-24 08:53:50Z

On Windows:

dioxus-web = {path = "D:/github/dioxus/packages/web"} dioxus-desktop = {path = "D:\\github\\dioxus\\packages\\desktop"}

Both are working.

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